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联合检测微卫星不稳定性和p16甲基化在早期肺癌中的诊断价值 被引量:2

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摘要 目的研究联合检测微卫星不稳定性(MSI)和p16基因启动子甲基化在早期肺癌中的诊断价值。方法对肺癌、癌前病变和正常肺组织采用PCR单链长度分析法检测MSI,采用甲基化特异PCR法检测p16甲基化。结果癌前病变组MSI的发生率显著高于肺癌组(P<0.05)和正常肺组织组(P<0.01),肺癌组MSI的发生率显著高于正常肺组织组(P<0.01);肺癌组p16甲基化的发生率显著高于癌前病变组(P<0.01)和正常肺组织组(P<0.01),癌前病变组p16甲基化的发生率显著高于正常肺组织组(P<0.01);联合检测MSI和p16甲基化的敏感性显著高于单一检测MSI(P<0.01)和p16甲基化(P<0.05);联合检测法与单一检测MSI和单一检测p16甲基化的特异性比较,差异无显著性意义(P>0.05)。结论联合检测MSI和p16甲基化可以显著提高早期肺癌诊断的敏感性同时不降低其特异性,值得临床推广。
出处 《中国呼吸与危重监护杂志》 CAS 2010年第1期81-82,共2页 Chinese Journal of Respiratory and Critical Care Medicine
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